Dropping ICP Upon Hard Acceleration
Thread Starter
|
Cross-Country
Joined: May 2016
Posts: 94
Likes: 29
From: West Virginia
With the Super Chip set to stock the truck is a drag to drive with notably less power throughout the range. I'll set it to stock, make the run again and see what happens with regards to boost and ICP.
Is it possible I'm looking at a bad MAP sensor?
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
Hotshot
Joined: Jul 2008
Posts: 12,782
Likes: 2,142
From: N.GA Mountains
OK, I will do that. With the regulator mounted under the hood I set/test it using compressed air.
With the Super Chip set to stock the truck is a drag to drive with notably less power throughout the range. I'll set it to stock, make the run again and see what happens with regards to boost and ICP.
Is it possible I'm looking at a bad MAP sensor?
With the Super Chip set to stock the truck is a drag to drive with notably less power throughout the range. I'll set it to stock, make the run again and see what happens with regards to boost and ICP.
Is it possible I'm looking at a bad MAP sensor?
Low ICP is either tuning (return to stock), injectors (air test) or HPOP (deadhead test).
on edit: low fuel pressure can also tank ICP. Check FP using water drain valve, 5/16” ID hose and any cheap 100psi gauge. Make hose long enough you can see it while driving. Open valve to see (pre-filter) fuel pressure.
This needs to be done anyway, but I see more and more failed FPR’s these days...
https://www.ford-trucks.com/forums/1...poon-mods.html
Thread Starter
|
Cross-Country
Joined: May 2016
Posts: 94
Likes: 29
From: West Virginia
You said you have an ICP code and the truck makes up to 25psi of boost, right?
Low ICP is either tuning (return to stock), injectors (air test) or HPOP (deadhead test).
on edit: low fuel pressure can also tank ICP. Check FP using water drain valve, 5/16” ID hose and any cheap 100psi gauge. Make hose long enough you can see it while driving. Open valve to see (pre-filter) fuel pressure.
This needs to be done anyway, but I see more and more failed FPR’s these days...
https://www.ford-trucks.com/forums/1...poon-mods.html
Low ICP is either tuning (return to stock), injectors (air test) or HPOP (deadhead test).
on edit: low fuel pressure can also tank ICP. Check FP using water drain valve, 5/16” ID hose and any cheap 100psi gauge. Make hose long enough you can see it while driving. Open valve to see (pre-filter) fuel pressure.
This needs to be done anyway, but I see more and more failed FPR’s these days...
https://www.ford-trucks.com/forums/1...poon-mods.html
FPR rebuilt and replaced the fuel pump when I did the Hutch and Harpoon mods a couple months ago. Idle fuel pressure went from 40 PSI to 65, and hard acceleration from 30 PSI to about 50.
Hotshot
Joined: Jul 2008
Posts: 12,782
Likes: 2,142
From: N.GA Mountains
Is that ‘sustained WOT’ or just a burst??
It would be really odd if IPR DC doesn’t go higher than that with WOT for longer than a few secs if ICP is dropping.....
It would be really odd if IPR DC doesn’t go higher than that with WOT for longer than a few secs if ICP is dropping.....
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Thread Starter
|
Cross-Country
Joined: May 2016
Posts: 94
Likes: 29
From: West Virginia
It's what the PO put in the truck. I'd like a Hydra.
That is for just a short 3-8 second WOT run. There isn't enough room in my local area for more without risk. Next time I'm out of the highway I'll give it a longer run.
Is there risk of damage with sustained WOT after the SES light comes on?
Is there risk of damage with sustained WOT after the SES light comes on?
Banned
Joined: Dec 2018
Posts: 3,541
Likes: 458
I was under the impression they are supposed to read up to 65%. On my edge Insight it will show up to that (okay 64.8 to be exact) if I keep the throttle pinned on a long pull. IPR valves are common trouble spots. Never been an issue on mine but that's the rumor.
Hotshot
Joined: Jul 2008
Posts: 12,782
Likes: 2,142
From: N.GA Mountains
It's what the PO put in the truck. I'd like a Hydra.
That is for just a short 3-8 second WOT run. There isn't enough room in my local area for more without risk. Next time I'm out of the highway I'll give it a longer run.
Is there risk of damage with sustained WOT after the SES light comes on?
That is for just a short 3-8 second WOT run. There isn't enough room in my local area for more without risk. Next time I'm out of the highway I'll give it a longer run.
Is there risk of damage with sustained WOT after the SES light comes on?
I suspect DC will be maxed out under sustained WOT. It can say 90% or more, but 65% or so is ‘maxed out’.
Thread Starter
|
Cross-Country
Joined: May 2016
Posts: 94
Likes: 29
From: West Virginia
I knew Super Chips was crap one week after I bought the truck and looked it up. Truck runs better with that chip in it than stock.
Next money spent on it will be for fuel and HPOP pressure gauges, then likely a Hydra. However, this spring I need to remove the bed and perform rust abatement on the frame, so I need to get a beater to drive while the truck's laid up.
What are these "quirks" you speak of?
Hotshot
Joined: Jul 2008
Posts: 12,782
Likes: 2,142
From: N.GA Mountains
Understand. It’s hard to go back to stock after having more power!!
Giving you 100% throttle at 50% pedal is my least favorite stupid trick.
They usually screw up shift strategy so transmission can’t decide what gear it wants under certain conditions.
Giving you 100% throttle at 50% pedal is my least favorite stupid trick.
They usually screw up shift strategy so transmission can’t decide what gear it wants under certain conditions.
Thread
Thread Starter
Forum
Replies
Last Post
SNIPER168308
1999 - 2003 7.3L Power Stroke Diesel
31
Mar 27, 2012 11:18 PM